Four race cars are part of a car test, all of which must run laps on a circular track. They all depart at the same time and from the same starting point. It is possible to verify that the first car completes a lap every 15 minutes, the second every 18 minutes, the third every 20 minutes and the fourth car every 12 minutes.
Based on this information, how many laps will the fastest car have done, until the first moment when the 4 cars meet again at the starting point again?
Mathbot Says...
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